I also realized this problem in our richfaces based web applications. Ajax seems to have problems. The question is if this is related to IE9 beta or Richfaces. If I change the browser to IE8 mode (F12) everything is working again.

Another error is shown as "SCRIPT16386: Schnittstelle nicht unterstützt". If I look into the line of ajax.js code it could mean that some feature on calling XMLSerializer().serializeToString() or element.outerHTML or document.imprtNode() might not be supported (yet).

So maybe IE9 is too beta right now according it´s xml featues or some major changes has to be done in ajax.js of Richfaces. Seems to best to wait for the next IE9 (beta) release.

is there any news about this issue? Will a 3.3.X snapshot be released to fix this problem?

We have several web portals based on JSF 1.2 and richfaces 3.x.x and it would be a amazing work to migrate all these to JSF 2 and Richfaces 4, so I really really hope for a 3.3.x fix! We cannot tell the customers of our customers not to use the IE9...

Right now we are all focused on getting RichFaces 4.0 released, and it should be out in the next couple of weeks!!!

When that is out we'll hopefully have some more time to review these issues. However any issues found for IE9 or better yet and patches, or work-around's should be added to jira RF-10774. Please link new jira's to it, or even add as sub-tasks.

Again, given the time cruch, any investigation and work rounds provided would be much appreciated!